docker-host | docker sidecar container forward all traffic | Proxy library

I was able to build a multiarch image successfully from an M1 Macbook which is arm64. Here's my docker file and trying to run from a raspberrypi aarch64/arm64 and I am getting this error when running the image: standard_init_linux.go:228: exec user process caused: exec format error

Editing the post with the python file as well:

I need to restrict connections to a docker container. The docker documentation states the following:

I'm running Kafka in docker and I've a .NET application that I want to use to consume messages. I've followed following tutorials with no luck:
https://www.confluent.io/blog/kafka-client-cannot-connect-to-broker-on-aws-on-docker-etc/
Connect to Kafka running in Docker
Interact with kafka docker container from outside of docker host
On my consumer application I get the following error if I try to conenct directly to containers ip:

I'm using WSL2 on Windows 10 19042. Here is my setup which works well with others applications like netcat, npx http-server or python -m SimpleHTTPServer.

Tested on Java 8 and 11. The following screenshots have been taken from this version.

I'm using https to protect the docker daemon socket. Followed all the steps as mentioned here. The environment variables are set as below,

• DOCKER_TLS_VERIFY=1
• DOCKER_CERT_PATH=~/.docker == All my client, ca & server certificates + keys exist here
• DOCKER_HOST=tcp://$HOST:2376

The below command works (when I pass ca, client certificate & key):

I have an application, that consists of few docker containers: nginx, client, admin, backend and mongo.

In container "backend" is running NestJS application on port 5000. Container has exposed port 5000. But container is not responding to any requests and application inside of container doesn't receive them. I've even tried to expose port 5000 to my local machine so I could make request outside of docker-host but this way container doesn't respond as well. When I'm running this NestJS app locally on my machine everything works perfectly. I have nginx.conf to configure behavior nginx container. It should redirect certain requests to specific containers using proxy. This approach works fine for client and admin containers. Both hosting NextJS application and listening on specific port. I've used the same approach for "backend" container but even though nginx seems to make correct requests, it doesn't receive response or for some reason it makes requests to wrong address inside of docker-host

Dockerfile for my custom images:

I downloaded a docker image for cadquery and jupyter notebook.

When i run the container, it gave me this message:

I have a Django REST service and another Flask service that work as a broker for the application. Both are different projects that run with their own Docker container. I'm able to POST a product on the Django service that is consumed by the Flask service, however, I cannot reach the Django service via Flask. These containers are running on the same network, and I already tried Thomasleveil's suggestions, including docker-host by qoomon. The error received by the request is the same as before I tried to forward the traffic. The difference is that now when I do the request it keeps hanging for a while until it fails.

The error is as follows: requests.exceptions.ConnectionError: HTTPConnectionPool(host='172.17.0.1', port=8000): Max retries exceeded with url: /api/user (Caused by NewConnectionError(': Failed to establish a new connection: [Errno 110] Connection timed out'))

The request I'm trying to make is a POST at /api/products/1/like. At the moment, no body is required.

Here is how I'm doing the POST with Flask, where the IP is the Docker IP:

On my Pi I followed this tutorial to install docker on raspbian. Few side notes here:

1. I did NOT setup a swarm, I stopped at docker info and (as in other guides) I succesfully ran the hello world container.
2. idk if it matters, but this guide (unlike others) had me edit /etc/apt/sources.list and add line: deb https://download.docker.com/linux/raspbian/ stretch stable

On my develop machine (win 10) I used this tutorial to add docker configs and ymls to my mern stack app. However at multiple points in this tutorial they wanted me to run docker commands, so I ended up having to install Docker Desktop.

But I don't want to use local containers, I want to use the remote one on my Pi. So I used this tutorial to try and setup my remote docker.

However Im getting an error:

C:\Users\oweng>docker-machine create --driver generic --generic-ip-address=192.168.1.2 --generic-ssh-key "%HOMEPATH%/.ssh/id_rsa" --generic-ssh-user=pi remote-docker-host Running pre-create checks... Creating machine... (remote-docker-host) Importing SSH key... Waiting for machine to be running, this may take a few minutes... Detecting operating system of created instance... Waiting for SSH to be available... Enter passphrase for key 'C:\Users\oweng.docker\machine\machines\remote-docker-host\id_rsa': Enter passphrase for key 'C:\Users\oweng.docker\machine\machines\remote-docker-host\id_rsa': Detecting the provisioner... Enter passphrase for key 'C:\Users\oweng.docker\machine\machines\remote-docker-host\id_rsa': Error creating machine: Error detecting OS: OS type not recognized

I have googled the error a bit but havnt found a solution.

furthermore when checking listening ports on my Pi (docker server) I dont see it running

pi@raspberrypi:~ $ sudo lsof -i -P -n | grep LISTEN xrdp-sesm 390 root 7u IPv6 14566 0t0 TCP [::1]:3350 (LISTEN) sshd
404 root 3u IPv4 17224 0t0 TCP *:22 (LISTEN) sshd
404 root 4u IPv6 17226 0t0 TCP *:22 (LISTEN) xrdp
406 xrdp 11u IPv6 17302 0t0 TCP *:3389 (LISTEN)

So I feel like maybe the server is not running? But it seems to be.

pi@raspberrypi:~ $ systemctl status docker ● docker.service - Docker Application Container Engine Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled) Active: active (running) since Tue 2020-11-03 07:18:21 PST; 3h 35min ago Docs: https://docs.docker.com Main PID: 496 (dockerd) Tasks: 13 CGroup: /system.slice/docker.service └─496 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock

Nov 03 07:18:14 raspberrypi dockerd[496]: time="2020-11-03T07:18:14.064113743-08:00" level=warning msg="Your kernel does not support cgroup blkio throttle.w Nov 03 07:18:14 raspberrypi dockerd[496]: time="2020-11-03T07:18:14.064249212-08:00" level=warning msg="Your kernel does not support cgroup blkio throttle.r Nov 03 07:18:14 raspberrypi dockerd[496]: time="2020-11-03T07:18:14.064373483-08:00" level=warning msg="Your kernel does not support cgroup blkio throttle.w Nov 03 07:18:14 raspberrypi dockerd[496]: time="2020-11-03T07:18:14.066367493-08:00" level=info msg="Loading containers: start." Nov 03 07:18:17 raspberrypi dockerd[496]: time="2020-11-03T07:18:17.612685200-08:00" level=info msg="Default bridge (docker0) is assigned with an IP address Nov 03 07:18:18 raspberrypi dockerd[496]: time="2020-11-03T07:18:18.710629367-08:00" level=info msg="Loading containers: done." Nov 03 07:18:20 raspberrypi dockerd[496]: time="2020-11-03T07:18:20.815943637-08:00" level=info msg="Docker daemon" commit=4484c46 graphdriver(s)=overlay2 v Nov 03 07:18:20 raspberrypi dockerd[496]: time="2020-11-03T07:18:20.822947178-08:00" level=info msg="Daemon has completed initialization" Nov 03 07:18:21 raspberrypi systemd1: Started Docker Application Container Engine. Nov 03 07:18:21 raspberrypi dockerd[496]: time="2020-11-03T07:18:21.273201136-08:00" level=info msg="API listen on /var/run/docker.sock"

Update 1

following this SO post i was able to get the server running it seems. Editing docker.service file. I now get a different error when trying to create

C:\Users\oweng>docker-machine create --driver generic --generic-ip-address=192.168.1.2:2137 --generic-ssh-key "%HOMEPATH%/.ssh/id_rsa" --generic-ssh-user=pi remote-docker-host Running pre-create checks... Creating machine... (remote-docker-host) Importing SSH key... Waiting for machine to be running, this may take a few minutes... Error creating machine: Error waiting for machine to be running: Maximum number of retries (60) exceeded

Update 2 BMitch's comment lead me to these two tutorial which seem to be exactly what im trying todo https://code.visualstudio.com/docs/containers/ssh https://code.visualstudio.com/docs/containers/choosing-dev-environment#_remote-machine